morse



"tinihml time EDMUND L. MORSE, OF

ST. LOUIS', MISSOURI.

Lemma Patent No. 87,867, daad March 16, 1869.

IMPROVEMENT IN' DOOR-SPRINGS.

The Schedule referred to in these Letters Patent and making part'of thesame.

To all who/ml fit may concern Be it known that I, EDMUND L. MORSE, ofthe city of St. Louis, in the county of St. Louis, and State ofMissouri, have made certain new and usefullmprove-l ments inDoor-Springs; and I do hereby-declare that the following is a full andclear description thereof, reference being had to the accompanyingdrawings, and t-o the letters of reference marked thereon.

' This invention relates to the use of a rubber spring,

in connection with proper lsocket and slide pieces on doors, or otherhinged frames, for lkeeping closed, or rapidly closing such doors orframes after being opened. To enable thoseherein skilled to make and usemy said invention, I will proceed to describe the same more fully, byreference to the accompanying Figure I as a plant Figure 2'as a frontelevation;

Figure 3 as a sectional elevation; and

Figure 4 as a plan View of the rubber spring.

A represents the door-frame, tov which a door, or gate, A', is hinged,in the usual manner. In the ordinary application of my said invention,it will be used to keep the door Af closed. In its said application, theconstruction of said invention will be in the general manner now to bedescribed.

I use a rubber spring,-- B, which will be formed in the hollowcylindrical outline indicated in tig. 4.

In order that said spring may. act fairlywith the sockeifpieces,(hereafter described,) I cut out of said cylinder B, -the prism b, itbeing the especial purpose to form a spring whose ends, b* and b2, shallhave such surface as shall fairly abut against proper ribs of thesocket-castings.

'It may be advantageous to increase the prism b, so that the ends b b2fall in the dotted line x y. In all such cases, it is hereby expressedas an essential feature of this device, that both ends, b b2, shallpresent the same inclination, and that by the cutting of the spring B,the length thereof, measured on the inner diameter, shall notbecurtailed.

In the application of said spring B, one of its ends is inserted in thesocket-piece C, and the other, in the sliding socket D, generally, asindicated in figs. 1, 2, and 3.

The socket C is secured to the door-frame A by proper screws, and, toprevent its loosening, has the prong c, which penetrates the frame A.

The end, b, of the spring B, abuts against the rib c', of the saidsocket, and the upper and lower ribs, cz and c3, hold the springlaterally.

In orderthat the spring B may be rmly held, and to more eectnally resistits tendency to draw out and return to its original circular shape, theend of the spring is permitted to pass between the ribs c and o3,

andin order that the end edge, thus projecting, may not be'pressed outin screwing the socket O against the frame A, the rib ca is-set backfrom the lower face of the socket O, as indicated in fig. 3, and aspace, c, is thus formed, under and behind the rib c3, for theprojecting edge of the rubber.

Similarly, the other end, b?, of the spring B, is run into the socket D,abutting against the end rib d, and

held laterally bythe upper and lower ribs, d* and d2.

Here, also, a slot is left between 'the ribs d2 and d, to permit the endof the rubber to pass through` and thus firmly clamp the spring againstitswithdrawal.

The sides of said socket D form the horns da, which have, at or neartheir ends, the pins, or rollers d.

In the application of the said parts, the rollers, or pins d* may run onproper raised ways on the door A', but I deem it more advisable tospecially arrange the guide-casting E for this purpose, said castingbeing secured by prongs and screws to the door A', and ar ranged withside ways e, the ends c whereof are raised, so as to prevent the 4pinsd*l from withdrawing from the ways e. Said ways e will be somewhatinclined, as indicated in iig. 3, so that the pins d* will run up andoff from the door-face, as it is opened, and thus increase' the leverageof resistance. l

It will be seen thatin inserting the spring B in -the sockets G and D,it has been straightened, and said straightening is exerted against theresistance of the material. In the position of its application saidspring, B, therefore, exerts great pressure to force the socketD againstthe door and vguide-piece E, and thus the device, here described, vac tsto close the door, as desired. Moreover', owing to the formation of theends b b to correspond to the inclination of the abutment-ribs c and d,ofthe sockets O and D, the pressure of said spring is fairly economizedand made effective. And, lastly,by the method of retaining the ends ofsaid spring between the socket-ribs, the spring is prevented fromwithdrawing, as is the case in similar devices.

Having thus fully described my invention,

1 The rubber' spring B, having the bearings b b2, when combined with thesockets O D, all constructed and arranged as described, for the purposeset forth.

2. The spring B, sockets G and D, and ways E, when combined and operatedas described, for the purpose set forth.

In witness of said invention,` I have hereunto set my hand, in thepresence of'- E. L. MORSE.

Witnesses GEO. P. HERTHEL, Jr., WM. W. HERTHEL.

